Each year the crew over at Novel Novice does these really amazing desktop calendars featuring the Twilight fandom. This year they have branched out a bit and have a multi-fandom theme going. Twilight is in two of the months, but there is also Harry Potter, Snow White and the Huntsman, The Hunger Games, and more.
Check out the entire collection at Novel Novice. Also check out Novel Novice for some really great coverage on the latest in YA books.